[INFO] cloning repository https://github.com/QQ3646/SInterpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/QQ3646/SInterpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQQ3646%2FSInterpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQQ3646%2FSInterpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f5b8fcc165f87c1dcefc60d14f94a9ea3f70e86b
[INFO] checking QQ3646/SInterpreter against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQQ3646%2FSInterpreter" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/QQ3646/SInterpreter on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/QQ3646/SInterpreter
[INFO] finished tweaking git repo https://github.com/QQ3646/SInterpreter
[INFO] tweaked toml for git repo https://github.com/QQ3646/SInterpreter written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/QQ3646/SInterpreter already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de4a54398117f4337f27510ca2a93dd3c98b8eb6c16d21dc2ceaefa748c3e827
[INFO] running `Command { std: "docker" "start" "-a" "de4a54398117f4337f27510ca2a93dd3c98b8eb6c16d21dc2ceaefa748c3e827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de4a54398117f4337f27510ca2a93dd3c98b8eb6c16d21dc2ceaefa748c3e827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de4a54398117f4337f27510ca2a93dd3c98b8eb6c16d21dc2ceaefa748c3e827", kill_on_drop: false }`
[INFO] [stdout] de4a54398117f4337f27510ca2a93dd3c98b8eb6c16d21dc2ceaefa748c3e827
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e2c43c6b0384eaea3eeeb8d3095bd812b3c293147c2668ea72c7eef45da5f736
[INFO] running `Command { std: "docker" "start" "-a" "e2c43c6b0384eaea3eeeb8d3095bd812b3c293147c2668ea72c7eef45da5f736", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]     Checking termcolor v1.1.3
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking sinterpreter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Number`
[INFO] [stdout]    --> src/libs/lex.rs:457:47
[INFO] [stdout]     |
[INFO] [stdout] 457 |     use crate::libs::lex::LiteralValue::{Nil, Number, String};
[INFO] [stdout]     |                                               ^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `NUMBER`
[INFO] [stdout]    --> src/libs/lex.rs:458:68
[INFO] [stdout]     |
[INFO] [stdout] 458 |     use crate::libs::lex::TokenType::{EOF, EQUAL, IDENTIFIER, LET, NUMBER, SEMICOLON, STRING};
[INFO] [stdout]     |                                                                    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]  --> src/libs/interpreter.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn visit_binary(&mut self, binary: &Expr) -> Object {
[INFO] [stdout]   |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grouping`
[INFO] [stdout]   --> src/libs/interpreter.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn visit_grouping(&mut self, grouping: &Expr) -> Object {
[INFO] [stdout]    |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_grouping`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `literal`
[INFO] [stdout]   --> src/libs/interpreter.rs:17:33
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn visit_literal(&mut self, literal: &Expr) -> Object {
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unary`
[INFO] [stdout]   --> src/libs/interpreter.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn visit_unary(&mut self, unary: &Expr) -> Object {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_unary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `FOR` is never constructed
[INFO] [stdout]   --> src/libs/lex.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub enum TokenType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 70 |     FOR,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/libs/lex.rs:96:8
[INFO] [stdout]    |
[INFO] [stdout] 95 | impl Token {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 96 |     fn new(token_type: TokenType, literal: LiteralValue, line: usize, lexeme: String) -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sync` is never used
[INFO] [stdout]    --> src/libs/parser.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 16  | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn sync(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]  --> src/libs/interpreter.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Interpreter {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `binary`
[INFO] [stdout]  --> src/libs/interpreter.rs:9:32
[INFO] [stdout]   |
[INFO] [stdout] 9 |     fn visit_binary(&mut self, binary: &Expr) -> Object {
[INFO] [stdout]   |                                ^^^^^^ help: if this is intentional, prefix it with an underscore: `_binary`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grouping`
[INFO] [stdout]   --> src/libs/interpreter.rs:13:34
[INFO] [stdout]    |
[INFO] [stdout] 13 |     fn visit_grouping(&mut self, grouping: &Expr) -> Object {
[INFO] [stdout]    |                                  ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_grouping`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `literal`
[INFO] [stdout]   --> src/libs/interpreter.rs:17:33
[INFO] [stdout]    |
[INFO] [stdout] 17 |     fn visit_literal(&mut self, literal: &Expr) -> Object {
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `unary`
[INFO] [stdout]   --> src/libs/interpreter.rs:21:31
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn visit_unary(&mut self, unary: &Expr) -> Object {
[INFO] [stdout]    |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_unary`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `FOR` is never constructed
[INFO] [stdout]   --> src/libs/lex.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | pub enum TokenType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 70 |     FOR,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenType` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `sync` is never used
[INFO] [stdout]    --> src/libs/parser.rs:170:8
[INFO] [stdout]     |
[INFO] [stdout] 16  | impl Parser {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 170 |     fn sync(&mut self) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]  --> src/libs/interpreter.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | struct Interpreter {
[INFO] [stdout]   |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "e2c43c6b0384eaea3eeeb8d3095bd812b3c293147c2668ea72c7eef45da5f736", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e2c43c6b0384eaea3eeeb8d3095bd812b3c293147c2668ea72c7eef45da5f736", kill_on_drop: false }`
[INFO] [stdout] e2c43c6b0384eaea3eeeb8d3095bd812b3c293147c2668ea72c7eef45da5f736